private async Task CreateAudioGraph()
{
// Create an AudioGraph with default settings
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Cannot create graph
throw new Exception("error");
}
_graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputResult = await _graph.CreateDeviceOutputNodeAsync();
_subMixNode = _graph.CreateSubmixNode();
if (deviceOutputResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output
throw new Exception("error");
}
_deviceOutputNode = deviceOutputResult.DeviceOutputNode;
_subMixNode.AddOutgoingConnection(_deviceOutputNode);
}
//<SnippetCreateSubmixNode>
private void CreateSubmixNode()
{
AudioSubmixNode submixNode = audioGraph.CreateSubmixNode();
fileInputNode.AddOutgoingConnection(submixNode);
frameInputNode.AddOutgoingConnection(submixNode);
submixNode.AddOutgoingConnection(fileOutputNode);
}
private void ConfigureSubmix()
{
//Create the submix node for the reverb
_submixNode = _graph.CreateSubmixNode();
_submixNode.OutgoingGain = 0.125d;
//Add the submix node to the DeviceOutput.
_submixNode.AddOutgoingConnection(_deviceOutput);
//Add Reverb to the Submix
ReverbEffectDefinition reverb = ReverbEffectDefinitionFactory.GetReverbEffectDefinition(_graph, ReverbEffectDefinitions.SmallRoom);
_submixNode.EffectDefinitions.Add(reverb);
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default setting
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Can't create the graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
submixNode = graph.CreateSubmixNode();
submixNodeContainer.Background = new SolidColorBrush(Colors.Green);
submixNode.AddOutgoingConnection(deviceOutputNode);
echoEffect = new EchoEffectDefinition(graph);
echoEffect.WetDryMix = 0.7f;
echoEffect.Feedback = 0.5f;
echoEffect.Delay = 500.0f;
submixNode.EffectDefinitions.Add(echoEffect);
// Disable the effect in the beginning. Enable in response to user action (UI toggle switch)
submixNode.DisableEffectsByDefinition(echoEffect);
// All nodes can have an OutgoingGain property
// Setting the gain on the Submix node attenuates the output of the node
submixNode.OutgoingGain = 0.5;
// Graph successfully created. Enable buttons to load files
fileButton1.IsEnabled = true;
fileButton2.IsEnabled = true;
}
//
//
//
public async Task InitializeAsync()
{
audGraphResult = await AudioGraph.CreateAsync(audGraphSettings);
//
audGraph = audGraphResult.Graph;
//
//
//
deviceOutputNodeResult = await audGraph.CreateDeviceOutputNodeAsync();
//
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
//
//
//
//deviceInputNodeResult = await audGraph.CreateDeviceInputNodeAsync(MediaCategory.Other);
// deviceInputNodeResult = await audGraph.CreateDeviceInputNodeAsync(MediaCategory.Other, audGraph.EncodingProperties);
deviceInputNodeResult = await audGraph.CreateDeviceInputNodeAsync(MediaCategory.Other, audGraph.EncodingProperties, inputDevice);
//
deviceInputNode = deviceInputNodeResult.DeviceInputNode;
//
//
//
audioDeviceOutputSubmixNode = audGraph.CreateSubmixNode();
//
//
//
deviceInputNode.AddOutgoingConnection(audioDeviceOutputSubmixNode);
//
audioDeviceOutputSubmixNode.AddOutgoingConnection(deviceOutputNode);
//
//
//
CreateEchoEffect();
CreateReverbEffect();
CreateLimiterEffect();
CreateEqEffect();
}
private async Task CreateAudioGraph()
{
// Create an AudioGraph with default setting
AudioGraphSettings settings = new AudioGraphSettings(AudioRenderCategory.Media);
CreateAudioGraphResult result = await AudioGraph.CreateAsync(settings);
if (result.Status != AudioGraphCreationStatus.Success)
{
// Can't create the graph
rootPage.NotifyUser(String.Format("AudioGraph Creation Error because {0}", result.Status.ToString()), NotifyType.ErrorMessage);
return;
}
graph = result.Graph;
// Create a device output node
CreateAudioDeviceOutputNodeResult deviceOutputNodeResult = await graph.CreateDeviceOutputNodeAsync();
if (deviceOutputNodeResult.Status != AudioDeviceNodeCreationStatus.Success)
{
// Cannot create device output node
rootPage.NotifyUser(String.Format("Audio Device Output unavailable because {0}", deviceOutputNodeResult.Status.ToString()), NotifyType.ErrorMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Red);
return;
}
deviceOutputNode = deviceOutputNodeResult.DeviceOutputNode;
rootPage.NotifyUser("Device Output Node successfully created", NotifyType.StatusMessage);
speakerContainer.Background = new SolidColorBrush(Colors.Green);
submixNode = graph.CreateSubmixNode();
subMixNode.Background = new SolidColorBrush(Colors.Green);
submixNode.AddOutgoingConnection(deviceOutputNode);
echoEffect = new EchoEffectDefinition(graph);
echoEffect.WetDryMix = 0.7f;
echoEffect.Feedback = 0.5f;
echoEffect.Delay = 500.0f;
submixNode.EffectDefinitions.Add(echoEffect);
// Disable the effect in the beginning. Enable in response to user action (UI toggle switch)
submixNode.DisableEffectsByDefinition(echoEffect);
// All nodes can have an OutgoingGain property
// Setting the gain on the Submix node attenuates the output of the node
submixNode.OutgoingGain = 0.5;
// Graph successfully created. Enable buttons to load files
fileButton1.IsEnabled = true;
fileButton2.IsEnabled = true;
}
/// <summary>
/// Connect all the nodes together to form the graph, in this case we only have 2 nodes
/// </summary>
private void ConnectNodes()
{
_fileInputNode.AddOutgoingConnection(_submixNode);
_submixNode.AddOutgoingConnection(_deviceOutputNode);
}
